Concrete-form stay



Oct. 19, 1926. 1,604,073 7 P. F. RAMM' CONCRETE FORM STAY Filed June 1925 I3 INVENTOR.

PA u L F RA M M A TTORNEYS.

Patented Get. 19, 1926.

UNITED STATES PAUL F. RAMM, F OAKLAND, CALIFORNIA.

CONCRETE-FORM STAY.

Application filed June 25, 1925. Serial No. 39,451.

My invention is a concrete-form stay of the type adapted to be readily assembled i and to extend between the outside studdings of a form, thereby holding the sheeting forming the mold for the concrete. The stay is left imbedded in the concrete.

} My present stay is-an improvement over that of my Patent #l,259,4@ l2 March 12, 1918 for concrete-form stay and over that of my Patent #1,550,000 Aug. 18, 1925, for concrete-form stays. In this application the form stay is made in two parts; and an object of my invention is to devise a connecting means whereby either of the tie members may be secured to the other by hooking therein from their inner ends or by threading through the outer ends which on gage and are driven into the studs.

My tie is made in the usual. shape with straight shanks and right angle bends at the outer ends forming prongs to be driven into the studding, while the inner end of one of the elements is formed with a single loop,

having the end of the wire crossing and pressing against the shank. The other tie element has a right angular bend parallel to its prong and then a longitudinal bend parallel to its shank, forming a locking end. Thus this locking end is off-set from the shank and engages the loop in the other tie member substantially in a direct line parallel to the shank of the looped tie member.

My invention will be more readily understood from the following description and drawings in which Figure 1 is a perspective view of a concrete-torm with my concrete-form ties in place and ready to connect, showing the manner of embedding the ties in the concrete, securing the prong end to the stud ding and the studding holding the concrete in place.

Figure 2 is a small detail showing the opposite way of threading the tie members to that shown in Figure 1.

Figure 3 is a plan view of my concreteform tie with the two tie elements connected and locked.

Figure 4 is a detail of the tie elements disconnected to show the form of loop on one member and the form of locking hook on the other member.

Figure 5 is an elevation of Figure 3 in the direction of the arrow 5, showing the manner in which the hook of one member enconcrete and to gages and locks the loop of the other mem- Referring to the drawings the concrete form is indicated generally by the numeral 1 and is built up of studs 2, spaced along oppos te sides of the form, and wood sheathing 3, held in place by the studs. The studs are held in place by my form ties a the prongs 01' which are embedded in the studs bybeing hammered therein. The concrete 5 is then filled in the mold or form and tamped if desired, the form ties being left embedded in the concrete if desired, as indicated at 6 in Fig. 1. The usual practice is to leave the form-ties embedded in the remove the studs and sheathing.

My form tie is constructed of heavy wire and in two parts. Each part has a shank 6 and 7 with prongs 8 and 9 bent at right angles to the shank and the prongs are preterably bevelled at 10 and 11 to cause them to incline slightly inwardly when driven into the studs. The member 7 is shown with a loop 12 formed by bending the wire into a circle with the end 13 projecting slightly above or level with the top of the shank 7. The end 13 of the loop is brought up on the side of the shank 7 preferably on the same side as in the prong 9.

The other element of the tie, having the shank 6, is shown with a right angular bend M'forming an offset for the locking stem 15, which is formed by another right angular bend 14, the stem 15 being preferably parallel to the shank 6 in direction. As shown in Figure 3 the bends 14 and 1 1 are spaced sufliciently to form a short shank 16 so that when the two members are hooked together they will form a species of lock. It is preferable to form the right angular bend 14; of such a radius that its inner curve 17 will engage the edge 18 of the loop or eye 12. The inner edge 19 of the stem 15 engages the outer edge 20 of the end 13 ot' the loop and presses it against the shank 7.

My form-stay may either be assembled by threading the prongs 8 through the loop 12 or by inserting the stem 15 through the loop or eye in the reversed direction. This is the manner shown in Figure 1 in which the element with the loop is shown driven into one of the studs. In Figure 2 another method of connecting the elements of the tie is shown by first securing the hook to a stuthby driving the prong 8 thereimgtnd the shank at the side thereof, the other passing the eye over the off-set stem' men'1berhztving a ehaink fornied vithtwo mtg-wing it 21 twist into" engagement Withright' a1'1gu1a1"bend'sa11d With short stem the short shank 16. "oftset and projecting beyond its shank ele- 6 My invention COlll d be"changed ConsiderrnentQ-snid stemfitv'hen threaded through the ably in detail Without departing from the loop and positioned in the Work, being paralspirit thereof, for instance, the" loops 'oould 'Ie1tothe shank oi the first mentioned member be formed on the opposite side from-that and engaging, the free end of the loop shown and the hook nieniberrversed to 'forinedonthes aid first mentioned member.

10:.rengage andlot'k such reversedloop, t. A form tie comprising in combination Having desoribed my invention, What I a pluralityor'wire. nlembersiflconneeted toclaim ,is:- 4 gether at their'innerendgone' o f lsz idirfiem- 1. it forln tie comprising in. Combination. bershaving .sh'ankTande'firong 9 at' r'fght 4 auphu'ehty' of Wire-'Ihernbers, one member jangies thereto zit-'itsoutef endj'and 3116011 15" having an eye formed by bending the, Wire" 12 at its innerlend, having'the'nd 1 3 ofthe into a 100p andlthe' other member-having loop on the ezimeeidef' of the shank zisf'the its lnner end offset from the main iwire prong'9 and e'iigag ng th'efslde of'the shank,

fl? threaded through the eye with the end bear} the other member or thetie haifing ti shzink 6 26 f 2. rform tieicoinprising tombin'ation at. itsonter en ingga einst the freeend oithed oop. with a prong 8 bent tit rightan le sfithreto J; a plurality" ofwireinenibers one member gular bends 14 jzind lekf'forfrningjay'ehort 1hli ingfla neye formed bendingitheshank :sh zink 1'6 'eubstzint-iizlly:parallel tothe iiirong' of the wire i nwthe, loop; the 0ther:..-11 1eniber 8' and extending in the Sameflirectionfend avi g two right:giniinlar bends;v at the'end an offset stem 15 arental to'endeXtending 2510f its shtnkl withga stem: extendingbartllel in the vseine direot'ion asithe sh zink '6"," 'said to it stern and positioned; when threaded Wirenienibers he'ving,"'\v hen-cohhotedythe through thejeye, parallelto thestenr of the short shank 16' e'Xtendin g throughftheloop qfirstmentifone'd member. 12 andthe otfest Stern 15 engaging theend A torintie comprising int-Combination. 13 of thesaid'loop, said"eternfbeingiibstannjphirehty of" wire-i neinbers,havingshanks, ,titilly parallel with "the shank 7. V "the. Shrink ofon e'inernberj being, bent into a In testimony n' hereoflfaffix iiifi'giiatilre. p, With theT'end of the. loopvengeiging PAULF. RAMM. 

